iREX vs' T' Rex: Immunization Record Exchange

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iREX vs. T. RexImmunization Record Exchange

• David John MarottaDT7 Softwarewww.dt7.com/cdc

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iREX Project Description

• CDC Project to encourage HL7 Immunization
  transport between state registries
• Toolkit to facilitate HL7 Immunization encoding,
  transport, receipt, acknowledgement, and parsing.

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Immunization Registry Exchange

• Message Trigger
• Message Encoding
• Message Transport
• Message Receipt
• Message Acknowledgement
• Message Parsing
• Message Handling

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Message Trigger

• Business case for implementing immunization
  message exchange
• Funding and management support for project
  implementation
• Business rules to send a VXU V04 - Unsolicited
  Vaccination Record Update
• Business rules to send a VXQ V01- Query for
  Vaccination Record

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Message Encoding

• Visual Message Definition (VMD) takes
  HL7-friendly file and handles the message
  encoding.

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Message Transport

• Secure HTTP (HTTPS)
• Privacy
• Authentication
• Simplicity
• Real-time acknowledgement

Dedicated line (DL)
This Proprietary SoftwareProduct Mandated By
OurState Legislature (TPSPMBOSL)
Virtual Private Network (VPN)
Digital Certificates (DC)
Encrypted Email (eEMail)
Encrypted FTP (eFTP)
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Message Receipt

• HTTPS is always available
• Messages can be stored into any format
• ODBC table inserts can store messages directly
  into a database

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Message Acknowledgement

• Messages are acknowledged in real time
• Message acknowledgement can include data specific
  responses from an interaction with a database
• Acknowledgement does not require the sending
  system to have a message server

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Message Parsing

• The visual message definition is used to parse
  the message according to the implementation guide
• Messages are parsed into an HL7-friendly record
  format

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Message Handling

• Business rules when to accept unsolicited update
  message
• Business rules when to respond to query request
• Data scrubbing and quality control issues
• De-duplification of patients
• De-duplification of care facitilites

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iREX Toolset

• Visual Message Definition
• Java HTTPS Message Receiver
• Immunization Message Transmiter
• Available for free use, source included
• Email cdc_at_dt7.com
• Website www.dt7.com/cdc